canada



an article of commerce.

DANIEL M. LAMB, on srr'rsoir, senses. l

neehohelhent he the eseeeerloin he ,hsres ehooe hllhlh, v

flpecihcstion iormingpnrt of Letters Pstont No, fifllill ihhlh, (lntetl.lnne fi l, lilltl; sppllcetion hletl Meg 3, 1W3.

To all whom it may col were:

Be it known test I, Unnmn inserts L, ct htziethroy, in the county ofhelitlollesenen l lProvince ct @nterio, Utltlttilt, mochinishhsrespecihestion:

he discovery of s Witter-proof snlcnnizshle gem which would supplement,or serve es it substitute for, csontchonc or gette-perehn, hes longheenn clesiderntnin intlie erts; The theta-theta plsntsl oi the nsclepies ormilkweed family contshi at large percenteg'e oi esontchonc has beenlonghnown tohotnnists not, so tar as my knowledge extencls,'no'one priorto the (isle of my intention sneeeeded in utilizing thispereentsge ofcsontchcuc'ns My invention is Ilmsefl upon thodiscovery that theceontchonccontsined in the plants of this family can be extracted sntlrendered available as on article of commerce; and my improvementconsists in n novel art-or process of extracting csoutehone from plantsoi the milk-weed family, or othersnslogons plants possessing the someproperty, by subjecting the plants, while in n green state, to a processof lermentntion',-which separates the gem from the woody fiber. I havediscovered,

moreover, that, although it is not absolutely necessary to the successof the process, the fermentation may he carried to such s state when itis full of. juice and its fiber is tender,

and pack it in a suitable vessel in masses snfflcient to producefermentation. I prefer, for this purpose, tanks or boxes with wallssufiijndlgment oi the workmen.

ciently open to shore slight ventilstion, entil with s covering tightenough to enclose reine --fllhis t'ermentstion may, es heiorereinsrhetll,

he carried to in point sn'mclent to destroy the hher of the plant,it'tlesiren, withont lnjnry to gum fromthe filler. 'lhe gummy liquid meythen he extrectetl-hy'pressnre, streined, nllil inspisssteii byevsporetion until snficiently herdenerlto he handled.

The gum may either housed in its rowel-s te or it may he cleensecl andtreeteol in. sny oi the modes now practiced in vulcenizing the orallneryceontchonc ofcommeree, which it closely resembles in its characteristicproperties.

ll fleem it unnecessary-to descrihethe mo chineryemployetl in carryingnot my process, as it constitutes no port of the subject-matter hereinclaimed, and its construction and mode of operation are familiar tothose skilled'in the art to which my invention pertains.

My process of extracting'vnlcnnizehle we tor-proof gum from plants byfermentation,-

nnd subsequently inspissnting the resultant jnice, is not limited in itsapplication to milkwecll, but may he applied to any plants possessing.similar properties.

Iclsim-'-- p I The art of extracting a. waterproof-glint from plantsof'the. ,aselepias or millr weel family, or other plants possessingsimilar prop:

erties, by subjecting the plants to fermentn- 7 tion, andinsplssntingthe resulting liquid by evaporation;

v DANLEL M. LAMB Witnesses:

M. Knowmon, Ocmvws Kmsnr.

